package firstdemo;
import java.util.Scanner;
public class Test {

public
	int a;
	int b;
	Scanner in=new Scanner(System.in);
	private String userInput;
	void add(){
		a=in.nextInt();
		b=in.nextInt();
		
		System.out.println(a+b);
		@SuppressWarnings("unused")
		String userInputString = userInput; 
	}	
	void sub(){
		a=in.nextInt();
		b=in.nextInt();
		
		System.out.println(a-b);
		@SuppressWarnings("unused")
		String userInputString = userInput; 
	}	
	void mult(){
		a=in.nextInt();
		b=in.nextInt();
		//,,,,
		System.out.println(a*b);
		@SuppressWarnings("unused")
		String userInputString = userInput; 
	}	
	void div(){
		a=in.nextInt();
		b=in.nextInt();
		
		System.out.println(a/b);
		@SuppressWarnings("unused")
		String userInputString = userInput; 
	}	
	
	public static void main(String[] args){
		Test te=new Test();
		te.add();
		te.sub();
		te.mult();
		te.div();
	}
}
